Buy Adderall 10 mg tablet 1909-545-6717 Adderall 10 mg online.The effectiveness of Adderall 10 mg for long-term use, i.e., for more than 3 weeks in children and 4 weeks in adolescents and adults, has not been systematically evaluated in controlled trials. Therefore, the physician who elects to use Adderall 10 mg for extended periods should periodically re-evaluate the long-term usefulness of the drug for the individual patient.